Lubricator.



J. SHERRY.

LUBRIGATOB.

APPLIOATION FILED MAY 10,1905.

2 SHEETS-SHEET 1..

I IN'VENTOR 1 I v W} n x 1 V V V j miz .1. A n; .1 ll] i f flu ATTORNEYS J. SHERRY.

.LUBRIGATOR. APPLICATION FILED MAYlQ, 1906. 924,588. Patented June 8, 1909,

UNITED STATES JOHN SHERRY, OF ROCHESTER, NEW YORK.

LUBRICATOR.

To all whom it may concern:

Be it known that I, JOHN SHERRY, of Rochester, in the county of Monroe and State of New York, have invented a certain new and useful Lubricator, of which the following is a specification.

My invention has for its object the pro duction of a lubricator, which is particularly simple in construction, economical in manufacture and highly efficient and durable in use; and to this end, it consists in the novel combinations, constructions and arrangements of the component parts of the lubricator, hereinafter set forth and claimed.

In describing my invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figure 1 is a side elevation of my lubricator. Fig. 2 is a detail view, partly in sec; tion, showing the pump and the coacting portion of the actuating mechanism there for. Fig. 3 is a detail view, partly in section, of the actuating shaft and clutches associated therewith, and contiguous parts. Fig. t is a face view of one of said clutches, the retaining plate being removed. Fig. is an enlarged sectional view on line A-A, Fig. 3. Fig. 6 is a sectional view on line BB, Fig. 2.

This lubricator comprises, generally, a reservoir for the lubricant, a pump having a re.- ciprocally movable piston, means for actuating the piston, said means including mechanism for permitting the adjustment of the piston without varying the length of its stroke.

The reservoir 1 is of any desirable form, size and construction, is formed with a lateral extension 2 at its lower end, a transverse bearing 3 extending through its upper portion and opening through opposite sides thereof, and also with a bearing 1 arranged above the bearing 3 and opening through but one side of the reservoir.

As illustrated, the pump consists of a pump-body 5 having a piston-chamber 6 connected to the reservoir, and a piston 7 movable in said chamber. Preferably, the

body 5 depends into the extension 2 from the top of said extension and is formed with inlet-ports 8 located intermediate of the ends of the piston-chamber 6 and with an outlet-passage 9 communicating with the piston-chamber at the lower end thereof. Said passage 9, as shown, extends upwardly Specification of Letters Patent.

Application filed May 10,

Patented June 8, 1909.

1905. Serial No. 259,755.

along the piston-chamber 6 and communicates with a conduit 10 which is connected with the mechanism to be lubricated. Said pump-body 5 is usually detachably secured to the extension 2 of the reservoir, being here illustrated as arranged in an opening. formed in the top of said extension, and having a flange 11 lapped upon the upper face of the top of said extension and secured thereto in any suitable manner as by screws 12. A lateral branch 13 of the outlet-passage 9 is formed in said flange, the outer end of said branch 13 communicating with a vertical chamber 14: to which the conduit '10 is attached and in which suitable check-valves 15 are located. The inlet-ports 8 are disposed opposite to each other, are of comparatively large size so as to permit the lubricant to flow practically unobstructed therethrough into the piston-chamber, and are opened and closed by the piston 7. Said piston 7 extends upwardly above the body 5 and is adjustable lengthwise of the chamber without varying the length of its stroke, to regulate the extent to which it will be moved into the pocket or portion of the chamber beneath the ports 8 thus governing the amount of lubricant forced from said chamber. However, when the piston is ad justed to project into the chamber to its greatest extent, the lowerend of the piston, at the end of the outstroke thereof, is beneath said ports 8 so that the piston closes said ports during an entire reciprocation thereof and no lubricant can enter the chamber.

The means for actuating the piston 7 comprises a rotary element, as a shaft 16, journaled in the bearing 3 and extending to 0pposite sides of the reservoir, one end thereof overhanging the lateral extension 2, an oscillating driving element 17, a clutch connecting said elements whereby the rotary ele ment or shaft is actuated intermittently in one direction, and connections between said rotary element or shaft 16 and the piston. The oscillating driving element, as here shown, consists of a lever pivoted intermediate of its ends on the rotary element or shaft 16 near the end thereof. Said clutch comprises two power-transmitting members 18, 19 associated, respectively, with said elements, and parts 20 for locking said memhere together, one of said members, as 18, consisting of a disk mounted on the rotary element or shaft 16 and provided with an annular flange 21 having an internal engaging face 22 concentric with the rotary ele ment or shaft 16; and the other member, as 19, comprising a disk mounted on the shaft 16 within said flange 21 and having its periphery contiguous to the engaging face 22, said last-mentioned disk being provided with peripheral cutouts 23 for receiving the locking parts 20. The sides 25 of the cutouts opposed to the face 22 are arc-shaped and the radius of the are of each of said sides is substantially the same as the radius of the annular engaging face 22, the center of said are being eccentric to the center of the arc of said face 22. By this arrangement the points of contact of each of the locking parts 20, which are preferably rollers, with the engaging face 22 and the side 25 of the cutout are approximately in a straight line passing through the center of the axis of the rotary element or shaft 16. Thus said members 18, 19 are positively and instantly locked together at the beginning of the driving movementof the element 17. An annular retaining ring 26 holds the member 19 in the member 18. As illustrated, the member 19 is fixed to the rotary element or shaft 16, and the member 18 is loose thereon and is connected to the driving element 17 in any suitable manner, as by a pivoted catch 27.

The connections between the rotary element or shaft 16 and the piston 7 include the mechanism for permitting the adjustment of the piston lengthwise of the piston-chamber without varying the stroke of the piston, and consists of an oscillating member, as the angular lever 28, pivoted in the bearing 4 of the reservoir and having a slot 29 formed in one of its arms in which works an eccentric pin 30 provided on the end of the rotary element or shaft 16, a part 31 for engaging the outer end of the piston 7, and a link 32 having its ends pivoted, respectively, to said part 31 and to the other arm of said oscillating member or angular lever 28. In the illustrated embodiment of my invention the piston is provided with a threaded end and a portion 34 of reducedthickness below said end, and also with a portion 35 angular in cross-section for receiving a wrench; and the engaging part 31 consists of an internally threaded socket for receiving the threaded. end 33 of the piston. Release of the piston from the socket or adjustment thereof to an undue extent into the piston-chamber 6, is prevented by a screw 36 which engages the rear face of the threaded end 33 of the piston 7. I

A clutch similar in principle of operation to that of the clutch previously described prevents retrograde movement of the rotary element or shaft 16, said clutch consisting of radially arranged arms 37 formed integral with the rotary element or shaft 16 near the end of said element or shaft opposite to that on which the driving element or lever 17 is located, arc-shaped faces 38 between said arms, a cup 39 fixed to the reservoir and inclosing the part of the rotary element or shaft 16 having the integral arms 37, and rollers etO arranged between said arms, the arc of said faces 38 being eccentric to the center of the cup 39 and of a radius substantially the same as that of said cup. A handpiece, as the crank -11, is provided on the other end of the shaft for actuating the shaft for 'ardly independently of the driving element.

A lubri-ator constructed as described is noiseless, is cheaply manufactured and the amount of lubricant to be pumped at each throw of the piston can be regulated while the lubrica'tor is in operation.

The construction and operation of my lubricator will now be readily understood upon reference to the foregoing description and the accompanying drawing.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

In a force feed lubricator and in combination a reservoir having a tubular body portion and a lateral extension at the lower end thereof, a rotary shaft disposed diametrically of the upper portion of said tubular body and having its ends projecting through the walls of the tubular body, means for driving the shaft associated with one of the projecting ends thereof, such means including a clutch, a pump located in said lateral extension of the body, an angular lever pivot-ally supported upon said body, a connection between one end of the lever and the piston of the pump, a connection between the other end of the lever and the other projecting end of said rotary shaft, said connection being made ecccntrically of such end, and a second clutch for preventing retrograde movement comprising a cap located between said lever and the tubular" body and secured to the latter, clutch surfaces on said other projecting end of the shaft and movable clutch members interposed between the last-named clutch surfaces and the interior of said cap, substantially as and. for the purpose specified.

In testimony whereof, I have hereunto signed my name in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the State of New York, this 20th. day of April, 1905.

JOHN snririnv.

lVitnessesz I S. Davis, F. G. BODELL. 

